Finding the Fourth Proportional to 2,345.89, 3,518.82 and 614.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.89 : 3,518.82 = 614.50 : x
2. Step 2: Convert to fraction form
   2,345.89/3,518.82 = 614.50/x
3. Step 3: Cross multiply
   2,345.89x = 3,518.82 × 614.50
4. Step 4: Simplify right side
   2,345.89x = 2,162,314.89
5. Step 5: Solve for x
   x = 2,162,314.89/2,345.89
6. Step 6: Final answer
   x = 921.75